Speaking in an interview with NBC News correspondent Hallie Jackson, Trump retaliated against Warren, who described him as a bigot just hours earlier at a campaign stop with presumptive Democratic presidential nominee Hillary Clinton in Ohio.

“We call her Pocahontas for a reason,” Trump, the presumptive GOP presidential nominee, told NBC. “She said she’s 5 percent Native American. She was unable to prove it. She used the fact that she was Native American to advance her career. Elizabeth Warren is a total fraud. I know it. Other people who work with her know it. Elizabeth Warren is a total fraud.

“She made up her heritage, which I think is racist,” Trump continued. “I think she’s a racist, actually, because what she did was very racist.”

Trump has repeatedly hammered Warren over a controversy that flared up during her 2012 Senate run over her claims that she has Native American ancestry. During her tenure as a professor at Harvard University, the school touted those claims as evidence of its diverse faculty.”